Nope. It's much harder to get a raise than just apply somewhere else where the wage is better.
In any case, the market will decide. I know for a fact that in my area, with the low unemployment rate, if you post a job and offer minimum wage, you're gonna be lucky if you get DumDum's resume. I doubt you could hire anyone with an RPAL at all for 12$/hour. Maybe it's different in Ajax.